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Problem 3 (24 pts): An underexpanded jet is shown below. The Mach number and pressure at the exit is 1.8 and 1.3 atm, respect
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Anso Ar=D r=1-4 tal l 20 = (op. 1 s es M2 = 1:2 Pez 1-3 ctn Polatur from ③ to 4 the back pressure will be pq. P3 - (14 8 1 2a) = P = P2 latus produit 6) M 2 1.97 from prandtl Meyer. Equation M (M2) = M (1980) = 20.280 M(MA)2 4(1.972 25-55° MEMA) 2 MPs. (1+ 0.242.153 ) (1+0.2(1.999)-1%4 TB 2 00255 atin

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